devDependencies skipped when incorrect version exists

[schmidtk]

npm-workspace install skips installing a devDependency if the target file already exists, even if the installed module version does not meet the defined version requirements.

Take the following example package.json:

{
  "name": "test",
  "version": "0.1.0",
  "devDependencies": {
    "ncp": "^2.0.0"
  },
  "dependencies": {
    "fs-extra": "^0.12.0"
  }
}

npm-workspace install will result in [email protected] being installed in node_modules, while npm install will result in [email protected] being installed.

My particular use case will be resolved when we update the higher level modules depending on an old and busted version of fs-extra, but I wanted to identify the inconsistent behavior. Workaround is to do npm-workspace install && npm i.